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https://gitlab.com/freepascal.org/fpc/source.git
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+ default implementation for for the *_checkoverflow() methods in case
setflags is false
* don't call the *_checkoverflow() methods from ncgadd with setflags
= true in case cs_check_overflow is disabled
git-svn-id: branches/jvmbackend@18314 -
This commit is contained in:
Jonas Maebe
parent
4ff56b2471
commit
e4d322bcdb
@ -293,8 +293,8 @@ unit hlcgobj;
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{ are any processors that support it (JM) }
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procedure a_op_const_reg_reg(list: TAsmList; op: TOpCg; size: tdef; a: aint; src, dst: tregister); virtual;
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procedure a_op_reg_reg_reg(list: TAsmList; op: TOpCg; size: tdef; src1, src2, dst: tregister); virtual;
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procedure a_op_const_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; a: aint; src, dst: tregister;setflags : boolean;var ovloc : tlocation); virtual; abstract;
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procedure a_op_reg_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; src1, src2, dst: tregister;setflags : boolean;var ovloc : tlocation); virtual; abstract;
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procedure a_op_const_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; a: aint; src, dst: tregister;setflags : boolean;var ovloc : tlocation); virtual;
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procedure a_op_reg_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; src1, src2, dst: tregister;setflags : boolean;var ovloc : tlocation); virtual;
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{ comparison operations }
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procedure a_cmp_const_reg_label(list : TAsmList;size : tdef;cmp_op : topcmp;a : aint;reg : tregister;
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@ -1367,6 +1367,22 @@ implementation
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end;
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end;
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procedure thlcgobj.a_op_const_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; a: aint; src, dst: tregister; setflags: boolean; var ovloc: tlocation);
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begin
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if not setflags then
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a_op_const_reg_reg(list,op,size,a,src,dst)
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else
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internalerror(2010122910);
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end;
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procedure thlcgobj.a_op_reg_reg_reg_checkoverflow(list: TAsmList; op: TOpCg; size: tdef; src1, src2, dst: tregister; setflags: boolean; var ovloc: tlocation);
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begin
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if not setflags then
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a_op_reg_reg_reg(list,op,size,src1,src2,dst)
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else
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internalerror(2010122911);
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end;
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procedure thlcgobj.a_cmp_const_reg_label(list: TAsmList; size: tdef; cmp_op: topcmp; a: aint; reg: tregister; l: tasmlabel);
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var
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tmpreg: tregister;
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@ -548,7 +548,8 @@ interface
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checkoverflow:=
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checkoverflow and
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(left.resultdef.typ<>pointerdef) and
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(right.resultdef.typ<>pointerdef);
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(right.resultdef.typ<>pointerdef) and
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(cs_check_overflow in current_settings.localswitches);
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{$ifdef cpu64bitalu}
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case nodetype of
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@ -572,12 +573,12 @@ interface
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// reg64 - reg64
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hlcg.a_op_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.register,left.location.register,location.register,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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checkoverflow,ovloc)
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else
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// reg64 - const64
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hlcg.a_op_const_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.value,left.location.register,location.register,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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checkoverflow,ovloc);
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end
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else
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begin
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@ -585,7 +586,7 @@ interface
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hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,left.resultdef,true);
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hlcg.a_op_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.register,left.location.register,location.register,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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checkoverflow,ovloc);
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end;
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end;
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else
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@ -598,11 +599,11 @@ interface
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if (right.location.loc = LOC_CONSTANT) then
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cg64.a_op64_const_reg_reg_checkoverflow(current_asmdata.CurrAsmList,op,location.size,right.location.value64,
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left.location.register64,location.register64,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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checkoverflow,ovloc)
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else
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cg64.a_op64_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,op,location.size,right.location.register64,
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left.location.register64,location.register64,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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checkoverflow,ovloc);
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end;
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subn:
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begin
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@ -616,13 +617,13 @@ interface
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cg64.a_op64_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,location.size,
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right.location.register64,left.location.register64,
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location.register64,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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checkoverflow,ovloc)
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else
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// reg64 - const64
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cg64.a_op64_const_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,location.size,
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right.location.value64,left.location.register64,
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location.register64,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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checkoverflow,ovloc)
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end
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else
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begin
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@ -631,7 +632,7 @@ interface
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cg64.a_op64_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,location.size,
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right.location.register64,left.location.register64,
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location.register64,
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checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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checkoverflow,ovloc);
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end;
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end;
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else
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@ -739,18 +740,19 @@ interface
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checkoverflow:=
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checkoverflow and
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(left.resultdef.typ<>pointerdef) and
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(right.resultdef.typ<>pointerdef);
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(right.resultdef.typ<>pointerdef) and
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(cs_check_overflow in current_settings.localswitches);
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if nodetype<>subn then
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begin
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if (right.location.loc<>LOC_CONSTANT) then
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hlcg.a_op_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,cgop,resultdef,
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left.location.register,right.location.register,
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location.register,checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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location.register,checkoverflow,ovloc)
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else
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hlcg.a_op_const_reg_reg_checkoverflow(current_asmdata.CurrAsmList,cgop,resultdef,
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right.location.value,left.location.register,
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location.register,checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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location.register,checkoverflow,ovloc);
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end
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else { subtract is a special case since its not commutative }
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begin
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@ -761,11 +763,11 @@ interface
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if right.location.loc<>LOC_CONSTANT then
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hlcg.a_op_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.register,left.location.register,
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location.register,checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc)
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location.register,checkoverflow,ovloc)
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else
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hlcg.a_op_const_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.value,left.location.register,
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location.register,checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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location.register,checkoverflow,ovloc);
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end
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else
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begin
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@ -773,7 +775,7 @@ interface
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hlcg.a_load_const_reg(current_asmdata.CurrAsmList,resultdef,
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left.location.value,tmpreg);
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hlcg.a_op_reg_reg_reg_checkoverflow(current_asmdata.CurrAsmList,OP_SUB,resultdef,
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right.location.register,tmpreg,location.register,checkoverflow and (cs_check_overflow in current_settings.localswitches),ovloc);
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right.location.register,tmpreg,location.register,checkoverflow,ovloc);
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end;
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end;
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